Oregon's Trusted Exterior Cleaning Experts

Protect your home from moss, rain damage, and clogged gutters. Professional soft wash cleaning for residential and commercial properties across the Portland Metro area.

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Response within 2 hours — no obligation

Why Oregon Homeowners Choose NJM

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Licensed

Oregon Contractor CCB #252799​

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Insured

Fully insured with $1M liability coverage​

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Rating

4.9/5 stars (130+ Google reviews)​

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Guarantee

100% satisfaction guarantee on every job

OUR SERVICES

Professional Exterior Cleaning for Oregon's Climate

Every service is designed specifically for Oregon’s wet climate. Each one protects your home, extends the life of your property, and improves curb appeal.

WHY CHOOSE NJM

Built for Oregon. Trusted by Homeowners.

We’re not a franchise, we’re your neighbors. Local expertise with results that last.

Local & Owner-Operated

Based in St. Helens. Camron and the crew know every neighborhood, every roof type, and every challenge Oregon weather throws at your home.

Eco-Friendly Methods

Our soft wash technique uses biodegradable, plant-safe cleaning solutions, tough on moss and algae but gentle on your landscaping and the environment.

Transparent Pricing

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Customer Testimonials

What Our Customers Say

130+ five-star reviews from homeowners across the Portland Metro area.

HOW IT WORKS

From Quote to Clean in 4 Simple Steps

We make exterior cleaning easy. No hassle, no runaround, just results.

1
Request a Quote
Call us at (971) 328-2122 or fill out our online form. We respond within 2 hours.
2
Get Your Estimate
We assess your property and provide a clear, written estimate with no hidden fees.
3
Nonstop Updates
Our crew arrives on time, cleans thoroughly, and leaves your property spotless.
4
You Love the Results
Walk through with us. If you're not 100% satisfied, we make it right — guaranteed.

OUR PREVIOUS WORK

Before-After

Alook into some of our work.

CONCRETE CLEANING BEFORE CONCRETE CLEANING AFTER
SIDE WASH BEFORE SIDE WASH AFTER
ROOF CLEAN BEFORE ROOF CLEAN AFTER
FREQUENTLY ASKED QUESTIONS

Answers To Common Roof & Gutter Cleaning Questions

We offer comprehensive exterior cleaning services including roof cleaning and moss removal, gutter cleaning and maintenance, house washing, pressure washing (driveways, decks, walkways), window cleaning, and Christmas light installation. We handle both residential and commercial properties throughout the St. Helens and Portland Metro area.

Yes, we are fully licensed as an Oregon contractor (CCB #252799), bonded, and carry comprehensive liability insurance ($1M coverage) plus workers’ compensation for all employees. Your property and our team are fully protected.

Getting a quote is easy! You can call or text us at (971) 328-2122, or fill out our online form. For faster quotes, text us photos of your roof, gutters, or the area needing service. Most quotes are provided within 2-4 hours, and many can be given same-day over the phone.

Roof cleaning in Oregon typically costs $300–$600 for a standard residential home. The final price depends on your roof’s size, pitch, the severity of moss or algae growth, and accessibility. We provide free, no-obligation estimates — call (971) 328-2122 or fill out our online form for a same-day quote.

We proudly serve St. Helens, Scappoose, Warren, Deer Island, Columbia City, Beaverton, Hillsboro, Portland Metro, and surrounding communities throughout Columbia County and Washington County. If you’re within 30 miles of St. Helens, we can typically accommodate your location.

Yes! We offer a 100% satisfaction guarantee on all services. If you’re not completely happy with the results, we’ll come back and make it right at no additional charge. For moss treatments, we include a limited regrowth warranty, if treated moss returns within the warranty window, we’ll retreat the affected areas.

We accept cash, all major credit cards, checks, and offer invoicing for commercial clients. Payment is due upon completion unless other arrangements are made. We also offer contactless payment options for your convenience.

Yes, we offer priority scheduling for emergency situations such as overflowing gutters causing active water damage, pre-inspection cleanings for home sales, or storm-related debris removal. Call us at (971) 328-2122 and let us know you have an urgent situation.

Yes! We offer quarterly, biannual, and annual maintenance plans with discounted pricing and priority scheduling. Our most popular plan includes gutter cleaning in spring and fall plus annual roof treatment. Maintenance plan members save 15-20% and get priority booking during busy seasons.

Most jobs can be scheduled within 3-7 days during peak season (spring and fall). During slower periods, we often have availability within 1-3 days. Emergency situations receive priority scheduling and can often be accommodated within 24-48 hours.

Yes! We offer discounts for first-time customers (10% off), multi-service packages (save 15-20% when booking multiple services together), senior citizens and veterans (ask about current offers), and maintenance plan members (15-20% savings). We also run seasonal promotions—check our website or ask when you call.

Oregon homeowners should clean their gutters at least twice a year: once in late fall after the leaves drop and once in spring after pollen season. If your home is surrounded by Douglas fir, maple, or oak trees, you may need gutter cleaning 3–4 times per year. Regular cleaning prevents water damage, foundation issues, and fascia rot. For a step-by-step breakdown, read our guide on how to clean gutters like a pro.

Yes. Soft washing is the safest and most effective method for cleaning asphalt shingle, cedar, and tile roofs. Unlike pressure washing, which can strip protective granules from your shingles, soft washing uses low-pressure water combined with biodegradable cleaning solutions to kill moss and algae at the root without causing damage. It’s the method recommended by most roofing manufacturers. Learn more in our guide: How do you clean a shingle roof?

Oregon’s combination of heavy rainfall, mild temperatures, shade from tall trees, and high humidity creates the perfect environment for moss growth. Moss thrives on north-facing roof slopes and in areas shaded by Douglas fir, maple, and alder trees. Once established, moss retains moisture against your shingles, which accelerates wear and can lead to leaks. Regular roof cleaning and moss treatment every 1–2 years is the best prevention. See also: How to remove moss from your driveway.

No, you don’t need to be home. As long as we have access to the areas being cleaned and an outdoor water spigot, we can complete most services while you’re away. We’ll send you before-and-after photos and a summary when the job is done. If you prefer to be present for a walkthrough, we’re happy to schedule accordingly.